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Vehicle-mounted intelligent audio device and audio processing method

An audio and intelligent technology, applied in voice analysis, voice recognition, instruments, etc., can solve the problems of low recognition rate and insufficient recognition accuracy of vehicle-mounted voice devices

Pending Publication Date: 2017-04-26
BEIJING SAIBIN TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the development of in-vehicle intelligent systems and in-vehicle interconnection technologies, more and more automakers have added voice control functions to their automotive products, but the recognition rate of existing in-vehicle voice devices is not strong, especially in vehicles with driving noise. In the case of recognition accuracy is not enough

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  • Vehicle-mounted intelligent audio device and audio processing method

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Embodiment Construction

[0010] The vehicle-mounted intelligent audio device of the present invention will be described in detail in conjunction with the accompanying drawings. Such as figure 1 As shown, the vehicle-mounted intelligent audio device includes a microphone array MA for picking up acoustic signals in the vehicle, and the acoustic signals are further sent to the first echo cancellation module (AEC) 1 for eliminating possible music background sounds and communication echoes, The acoustic signal after the echo cancellation enters the voice wake-up module (V.T.) 2, and the voice wake-up module 2 analyzes the incoming acoustic signal, if it is detected that the acoustic signal includes a preset trigger voice signal, such as "Hi, hello" etc., then the voice wake-up module 2 sends instructions to restore other functional modules from the low power consumption state to the working state; when the audio device enters the working state, the subsequent voice signal of the speaker is further sent to ...

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Abstract

The invention provides a vehicle-mounted intelligent audio device and a corresponding audio processing method. The method comprises the following steps of using a microphone array MA; collecting a sound signal in a vehicle; carrying out echo elimination, voice awakening, end point detection, wave beam formation, second echo elimination, background noise suppression, voice identification and nature voice processing on the signal; and finally, according to a corresponding voice instruction, executing a corresponding action. By using the device of the invention, precision and an identification effect of voice recognition in the vehicle can be greatly increased.

Description

technical field [0001] The invention belongs to the field of electroacoustics, and in particular relates to a vehicle-mounted intelligent audio device and an audio processing method. Background technique [0002] With the development of in-vehicle intelligent systems and in-vehicle interconnection technologies, more and more automakers have added voice control functions to their automotive products, but the recognition rate of existing in-vehicle voice devices is not strong, especially in vehicles with driving noise. In this case, the recognition accuracy is not enough. Contents of the invention [0003] In order to overcome the defects of the prior art, the present invention proposes a vehicle-mounted intelligent audio device and an audio processing method. Using the device, the accuracy and recognition effect of in-vehicle voice recognition can be significantly improved. [0004] A vehicle-mounted intelligent audio device is proposed, which includes a microphone array M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/22G10L21/0208G10L21/057G10L25/87
CPCG10L15/22G10L21/0208G10L21/057G10L25/87G10L2015/223G10L2021/02082
Inventor 张德明
Owner BEIJING SAIBIN TECH